Battery charger



FIG. 1 is a perspective view of a first embodiment of a battery charger showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view of a second embodiment of a battery charger showing my new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a side view thereof;

FIG. 12 is a second side view thereof;

FIG. 13 is a top view thereof; and,

FIG. 14 is a bottom view thereof.

The broken lines in the drawings, as well as the unshaded areas within the bounds of the broken lines, illustrate portions of the battery charger that form no part of the claimed design. 

CLAIM The ornamental design for a battery charger, as shown and described. 